B-3=3b-12

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Solution for B-3=3b-12 equation: 


Simplifying
B + -3 = 3b + -12

Reorder the terms:
-3 + B = 3b + -12

Reorder the terms:
-3 + B = -12 + 3b

Solving
-3 + B = -12 + 3b

Solving for variable 'B'.

Move all terms containing B to the left, all other terms to the right.

Add '3' to each side of the equation.
-3 + 3 + B = -12 + 3 + 3b

Combine like terms: -3 + 3 = 0
0 + B = -12 + 3 + 3b
B = -12 + 3 + 3b

Combine like terms: -12 + 3 = -9
B = -9 + 3b

Simplifying
B = -9 + 3b

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